Question

if sino 4/5 then find coso​

Answer 1

Answer:

Step-by-step explanation:

Sin A= 4/5=prependicular/hypotenuse

CosA =Base/hypotenuse

Base=√hyp.^-prep.^

=√9 =3

Base=3/5

Answer 2

Answer:

sin0=4/5

therefore, sin^2theta +cos^2theta =1

therefore,

cos^2=1-sin^2theta

= 1 - (4/5)^2

= 1 - 16/25

= 9/25

therefore, cos theta = +- 3/5